冰冠 冰冠是一种规模比大陆冰盖小，外形与其相似，而穹形更为突出的覆盖型冰川。在压力不均匀情况下，冰体内的冰从中心向四周呈放射状漫流。它是大陆冰盖和山岳冰川的过渡类型。多分布在一些高原和岛屿上，故又有高原冰帽和岛屿冰帽之分。冰岛的伐特纳冰川即是一例。
具有紧靠冰冠(Ice cap) 或 大陆冰河 ( Continental glacier ) 外缘边区特有之气候. 主要之气候型态为经常有极冷而干燥之风自冰区吹出.
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对于诸如冰冠融化和温室效应等重大问题，政府和大公司有责任采取必要的措施。
For major issues such as the melting ice caps and the greenhouse effect, governments and large companies are duty-bound to take necessary measures.
图中另一块明亮的区域则是北冰洋的极地冰冠。
The other bright region in the image is the polar ice cap over the Arctic Ocean.
极地冰冠后退在环北极国家中引发了热议。 随着冰冠消融，下面蕴藏的丰富自然资源将首次浮出水面。
Much has been made about conflicts between Arctic states because of a retreating polar ice cap, which will make many natural resources accessible for the first time.
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